Know Your Environment. Protect Your Health.

Antimony

Comanche Harbor & Port Ocall

NOTE: Comanche Harbor & Port Ocall purchases water from Acton MUD which is required to test for antimony. Sample information shown below was taken by Acton MUD.

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND20ND
2021ND10ND
2022ND10ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for antimony was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 6 ppb

The legal limit for antimony, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

NOTE: Comanche Harbor & Port Ocall purchases water from Acton MUD which is required to test for antimony. Sample information shown below was taken by Acton MUD.

Date Lab ID Result
2018-03-28Q1812936030ND
2018-03-28Q1812936029ND
2018-03-28Q1812936053ND
2018-03-28Q1812936032ND
2018-03-28Q1812936031ND
2019-01-10Q1901506005ND
2019-01-10Q1901506011ND
2019-03-26Q1912275052ND
2019-03-26Q1912275053ND
2019-03-26Q1912275054ND
2019-03-26Q1912275055ND
2019-03-26Q1912275056ND
2019-03-26Q1912275057ND
2019-03-26Q1912275058ND
2019-03-26Q1912275059ND
2019-03-26Q1912275060ND
2019-03-26Q1912275061ND
2020-03-04Q2008205037ND
2020-07-29Q2029640011ND
2021-04-01Q2108342039ND
2021-04-01Q2108342040ND
2021-04-01Q2108342038ND
2021-07-22Q2119289004ND
2022-01-27Q2202897001ND
2022-01-27Q2202897003ND
2022-01-27Q2202897005ND
2022-04-07Q2210873002ND
2022-04-07Q2210873004ND
2022-04-07Q2210873003ND
2022-04-07Q2210873001ND
2022-10-06Q2230209017ND
2022-10-06Q2230209018ND
2022-10-06Q2230209024ND
2022-10-06Q2230209032ND
2023-07-26Q2329862004ND
2023-11-14Q2348718021ND